Re: Same query doing slow then quick

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On 09/26/2012 16:14, FFW_Rude wrote:
Thank for you answer.

shared_buffer is at 24Mb
effective_cache_size at 2048Mb

What do you mean properly ? That's not really helping a novice...


from my previous mail:

before looking further, please configure shared_buffers and effective_cache_size properly, it's fundamental you'll probably need to raise SHMALL/SHMMAX, take a look at: http://www.postgresql.org/docs/current/static/kernel-resources.html for 4GB of RAM I would start with shared_buffers to 512MB and effective_cache_size to 2GB



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